The entrance to 1623/173 (originally marked as CUCC 90/3 and tagged by Sepp, Robert and Andy in 1995) seen in 1999. The shaft is formed on the same fracture line as 1623/172 (as are several smaller, unmarked shafts), trending on 024°. The shaft is 20m deep, 7m in diameter and has a snow plug which may or may not allow access down a gap at the edge, depending on conditions.

Photo © Earl Merson, 1999